10121111120 has 40 divisors (see below), whose sum is σ = 23882813664. Its totient is φ = 3988017792.

The previous prime is 10121111101. The next prime is 10121111191. The reversal of 10121111120 is 2111112101.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 938774 + ... + 949493.

Almost surely, 2^10121111120 is an apocalyptic number.

10121111120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10121111120 is an abundant number, since it is smaller than the sum of its proper divisors (13761702544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10121111120 is a wasteful number, since it uses less digits than its factorization.

10121111120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1888347 (or 1888341 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 10121111120 its reverse (2111112101), we get a palindrome (12232223221).

The spelling of 10121111120 in words is "ten billion, one hundred twenty-one million, one hundred eleven thousand, one hundred twenty".